why would anyone with a 950 listen in 2-channel? If you really want to be retro, you might as well listen in mono! The huge improvement in going from mono to stereo is dwarfed by the vast improvement in going to surround sound, even if you're just extracting ambiance with DPL2.
Many people including me, sometimes like to listen to CD's, which are recorded in stereo, in stereo, without extracting ambiance.
While I do enjoy the 950's DPL2 (and even more, NEO6), I and others as well, often like to listen in old fashioned stereo.
Just call me old fashioned.